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Thiophenes

Organic heterocyclic compounds that consist of a five-membered ring with four carbon atoms, and one sulfur atom.
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1

2,5-Dimethylthiophene, 98+%

CAS: 638-02-8 Molecular Formula: C6H8S Molecular Weight (g/mol): 112.19 MDL Number: MFCD00005452 InChI Key: GWQOOADXMVQEFT-UHFFFAOYSA-N Synonym: thiophene, 2,5-dimethyl,2,5-dimethyl-thiophene,unii-v6ddx6wb12,v6ddx6wb12,pubchem5194,2,5 dimethylthiophene,thiophene,5-dimethyl,2,5-dimethyl thiophene,thiophene,2,5-dimethyl,2,5-dimethyl-2h-thiolium PubChem CID: 12514 IUPAC Name: 2,5-dimethylthiophene SMILES: CC1=CC=C(S1)C

PubChem CID 12514
CAS 638-02-8
Molecular Weight (g/mol) 112.19
MDL Number MFCD00005452
SMILES CC1=CC=C(S1)C
Synonym thiophene, 2,5-dimethyl,2,5-dimethyl-thiophene,unii-v6ddx6wb12,v6ddx6wb12,pubchem5194,2,5 dimethylthiophene,thiophene,5-dimethyl,2,5-dimethyl thiophene,thiophene,2,5-dimethyl,2,5-dimethyl-2h-thiolium
IUPAC Name 2,5-dimethylthiophene
InChI Key GWQOOADXMVQEFT-UHFFFAOYSA-N
Molecular Formula C6H8S
2

Thiophene-2-carboxylic acid, 99%

CAS: 527-72-0 Molecular Formula: C5H4O2S Molecular Weight (g/mol): 128.15 MDL Number: MFCD00005437 InChI Key: QERYCTSHXKAMIS-UHFFFAOYSA-N Synonym: 2-thiophenecarboxylic acid,2-thenoic acid,2-carboxythiophene,2-thiophenic acid,2-thienylcarboxylic acid,alpha-thiophenecarboxylic acid,2-tca,thiophene-2-carboxylate,tenoic acid,.alpha.-thiophenecarboxylic acid PubChem CID: 10700 ChEBI: CHEBI:71241 IUPAC Name: thiophene-2-carboxylic acid SMILES: OC(=O)C1=CC=CS1

PubChem CID 10700
CAS 527-72-0
Molecular Weight (g/mol) 128.15
ChEBI CHEBI:71241
MDL Number MFCD00005437
SMILES OC(=O)C1=CC=CS1
Synonym 2-thiophenecarboxylic acid,2-thenoic acid,2-carboxythiophene,2-thiophenic acid,2-thienylcarboxylic acid,alpha-thiophenecarboxylic acid,2-tca,thiophene-2-carboxylate,tenoic acid,.alpha.-thiophenecarboxylic acid
IUPAC Name thiophene-2-carboxylic acid
InChI Key QERYCTSHXKAMIS-UHFFFAOYSA-N
Molecular Formula C5H4O2S
3

5-Cyanothiophene-2-boronic acid, 98%, Thermo Scientific Chemicals

CAS: 305832-67-1 Molecular Formula: C5H4BNO2S Molecular Weight (g/mol): 152.96 MDL Number: MFCD02094029 InChI Key: ZEOMEPSYIIQIND-UHFFFAOYSA-N Synonym: 5-cyanothiophene-2-boronic acid,5-cyanothiophen-2-yl boronic acid,5-cyanothiophen-2-yl-2-boronic acid,5-boronothiophene-2-carbonitrile,5-cyano-2-thienyl boronic acid,5-dihydroxyboranyl thiophene-2-carbonitrile,5-cyano-2-thienylboronic acid,boronic acid, 5-cyano-2-thienyl,5-cyanothiophen-2-boronic acid,acmc-1ctts PubChem CID: 4198743 IUPAC Name: (5-cyanothiophen-2-yl)boronic acid SMILES: OB(O)C1=CC=C(S1)C#N

PubChem CID 4198743
CAS 305832-67-1
Molecular Weight (g/mol) 152.96
MDL Number MFCD02094029
SMILES OB(O)C1=CC=C(S1)C#N
Synonym 5-cyanothiophene-2-boronic acid,5-cyanothiophen-2-yl boronic acid,5-cyanothiophen-2-yl-2-boronic acid,5-boronothiophene-2-carbonitrile,5-cyano-2-thienyl boronic acid,5-dihydroxyboranyl thiophene-2-carbonitrile,5-cyano-2-thienylboronic acid,boronic acid, 5-cyano-2-thienyl,5-cyanothiophen-2-boronic acid,acmc-1ctts
IUPAC Name (5-cyanothiophen-2-yl)boronic acid
InChI Key ZEOMEPSYIIQIND-UHFFFAOYSA-N
Molecular Formula C5H4BNO2S
4

5-Chlorothiophene-2-carboxylic acid, 98%

CAS: 24065-33-6 Molecular Formula: C5H3ClO2S Molecular Weight (g/mol): 162.59 MDL Number: MFCD00041426 InChI Key: QZLSBOVWPHXCLT-UHFFFAOYSA-N Synonym: 5-chloro-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-chloro,2-chloro-5-carboxythiophene,5-chloro-2-thiophene carboxylic acid,pubchem7380,maybridge3_003717,acmc-209g8i,rivaroxaban related compound,5-18-06-00177 beilstein handbook reference,ksc204m2j PubChem CID: 95048 IUPAC Name: 5-chlorothiophene-2-carboxylic acid SMILES: OC(=O)C1=CC=C(Cl)S1

PubChem CID 95048
CAS 24065-33-6
Molecular Weight (g/mol) 162.59
MDL Number MFCD00041426
SMILES OC(=O)C1=CC=C(Cl)S1
Synonym 5-chloro-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-chloro,2-chloro-5-carboxythiophene,5-chloro-2-thiophene carboxylic acid,pubchem7380,maybridge3_003717,acmc-209g8i,rivaroxaban related compound,5-18-06-00177 beilstein handbook reference,ksc204m2j
IUPAC Name 5-chlorothiophene-2-carboxylic acid
InChI Key QZLSBOVWPHXCLT-UHFFFAOYSA-N
Molecular Formula C5H3ClO2S
5

Benzo[b]thiophene-2-carboxaldehyde, 97%

CAS: 3541-37-5 Molecular Formula: C9H6OS Molecular Weight (g/mol): 162.21 MDL Number: MFCD01075041 InChI Key: NXSVNPSWARVMAY-UHFFFAOYSA-N Synonym: benzo b thiophene-2-carboxaldehyde,benzo b thiophene-2-carbaldehyde,thianaphthene-2-carboxaldehyde,benzothiophene-2-carboxaldehyde,acmc-209igo,2-formylbenzo b thiophene,2-benzothiophenecarbaldehyde,2-formyl-benzo b thiophene,benzothiophene-2-carbaldehyde,2-benzothiophenecarboxaldehyde PubChem CID: 736500 IUPAC Name: 1-benzothiophene-2-carbaldehyde SMILES: O=CC1=CC2=CC=CC=C2S1

PubChem CID 736500
CAS 3541-37-5
Molecular Weight (g/mol) 162.21
MDL Number MFCD01075041
SMILES O=CC1=CC2=CC=CC=C2S1
Synonym benzo b thiophene-2-carboxaldehyde,benzo b thiophene-2-carbaldehyde,thianaphthene-2-carboxaldehyde,benzothiophene-2-carboxaldehyde,acmc-209igo,2-formylbenzo b thiophene,2-benzothiophenecarbaldehyde,2-formyl-benzo b thiophene,benzothiophene-2-carbaldehyde,2-benzothiophenecarboxaldehyde
IUPAC Name 1-benzothiophene-2-carbaldehyde
InChI Key NXSVNPSWARVMAY-UHFFFAOYSA-N
Molecular Formula C9H6OS
6

5-Nitrothiophene-2-carboxaldehyde, 98%

CAS: 4521-33-9 Molecular Formula: C5H3NO3S Molecular Weight (g/mol): 157.143 MDL Number: MFCD00005433 InChI Key: CHTSWZNXEKOLPM-UHFFFAOYSA-N Synonym: 5-nitrothiophene-2-carboxaldehyde,5-nitro-2-thiophenecarboxaldehyde,5-nitro-2-thiophenecarbaldehyde,5-nitro-thiophene-2-carbaldehyde,2-thiophenecarboxaldehyde, 5-nitro,5-nitrothiophene-2-aldehyde,thiophenecarboxaldehyde, 5-nitro,pubchem15668,5-nitrothiophen aldehyde,5-nitro-2-formyl-thiophene PubChem CID: 78281 IUPAC Name: 5-nitrothiophene-2-carbaldehyde SMILES: C1=C(SC(=C1)[N+](=O)[O-])C=O

PubChem CID 78281
CAS 4521-33-9
Molecular Weight (g/mol) 157.143
MDL Number MFCD00005433
SMILES C1=C(SC(=C1)[N+](=O)[O-])C=O
Synonym 5-nitrothiophene-2-carboxaldehyde,5-nitro-2-thiophenecarboxaldehyde,5-nitro-2-thiophenecarbaldehyde,5-nitro-thiophene-2-carbaldehyde,2-thiophenecarboxaldehyde, 5-nitro,5-nitrothiophene-2-aldehyde,thiophenecarboxaldehyde, 5-nitro,pubchem15668,5-nitrothiophen aldehyde,5-nitro-2-formyl-thiophene
IUPAC Name 5-nitrothiophene-2-carbaldehyde
InChI Key CHTSWZNXEKOLPM-UHFFFAOYSA-N
Molecular Formula C5H3NO3S
7

Ethyl 5-bromothiophene-2-carboxylate, 99%

CAS: 5751-83-7 Molecular Formula: C7H7BrO2S Molecular Weight (g/mol): 235.095 MDL Number: MFCD02683089 InChI Key: PZNHMXAOMDQLLE-UHFFFAOYSA-N Synonym: 5-bromothiophene-2-carboxylic acid ethyl ester,ethyl 5-bromo-2-thiophenecarboxylate,ethyl5-bromothiophene-2-carboxylate,5-bromo-thiophene-2-carboxylic acid ethyl ester,2-thiophenecarboxylic acid, 5-bromo-, ethyl ester,pubchem16118,acmc-209zz5,ksc494s9b,2-bromo-5-ethoxycarbonylthiophene,ethyl 5-bromothiophene-2carboxylate PubChem CID: 605723 IUPAC Name: ethyl 5-bromothiophene-2-carboxylate SMILES: CCOC(=O)C1=CC=C(S1)Br

PubChem CID 605723
CAS 5751-83-7
Molecular Weight (g/mol) 235.095
MDL Number MFCD02683089
SMILES CCOC(=O)C1=CC=C(S1)Br
Synonym 5-bromothiophene-2-carboxylic acid ethyl ester,ethyl 5-bromo-2-thiophenecarboxylate,ethyl5-bromothiophene-2-carboxylate,5-bromo-thiophene-2-carboxylic acid ethyl ester,2-thiophenecarboxylic acid, 5-bromo-, ethyl ester,pubchem16118,acmc-209zz5,ksc494s9b,2-bromo-5-ethoxycarbonylthiophene,ethyl 5-bromothiophene-2carboxylate
IUPAC Name ethyl 5-bromothiophene-2-carboxylate
InChI Key PZNHMXAOMDQLLE-UHFFFAOYSA-N
Molecular Formula C7H7BrO2S
8

5-Nitrothiophene-2-carbonitrile, 98+%

CAS: 16689-02-4 Molecular Formula: C5H2N2O2S Molecular Weight (g/mol): 154.143 MDL Number: MFCD00052401 InChI Key: FLYONFCGDKAMIH-UHFFFAOYSA-N Synonym: 5-nitro-2-thiophenecarbonitrile,5-cyano-2-nitrothiophene,2-cyano-5-nitrothiophene,5-nitrothiophene-2-carbonitirile,5-nitro-thiophene-2-carbonitrile,2-thiophenecarbonitrile, 5-nitro,zlchem 478,maybridge1_005980,5-nitro-2-cyanothiophene,acmc-209dv8 PubChem CID: 519294 IUPAC Name: 5-nitrothiophene-2-carbonitrile SMILES: C1=C(SC(=C1)[N+](=O)[O-])C#N

PubChem CID 519294
CAS 16689-02-4
Molecular Weight (g/mol) 154.143
MDL Number MFCD00052401
SMILES C1=C(SC(=C1)[N+](=O)[O-])C#N
Synonym 5-nitro-2-thiophenecarbonitrile,5-cyano-2-nitrothiophene,2-cyano-5-nitrothiophene,5-nitrothiophene-2-carbonitirile,5-nitro-thiophene-2-carbonitrile,2-thiophenecarbonitrile, 5-nitro,zlchem 478,maybridge1_005980,5-nitro-2-cyanothiophene,acmc-209dv8
IUPAC Name 5-nitrothiophene-2-carbonitrile
InChI Key FLYONFCGDKAMIH-UHFFFAOYSA-N
Molecular Formula C5H2N2O2S
9

3-Bromothiophene-2-carboxamide, 99%, Thermo Scientific Chemicals

CAS: 78031-18-2 Molecular Formula: C5H4BrNOS Molecular Weight (g/mol): 206.06 MDL Number: MFCD00173835 InChI Key: KWXUWNXTRUZHNQ-UHFFFAOYSA-N Synonym: maybridge1_007895,3-bromo-2-carboxamidothiophene,2-thiophenecarboxamide,3-bromo,3-bromo-thiophene-2-carboxamide,3-bromo-2-thiophenecarboxamide #,buttpark 180\02-08,3-bromo thiophene-2-carboxamide PubChem CID: 605721 IUPAC Name: 3-bromothiophene-2-carboxamide SMILES: NC(=O)C1=C(Br)C=CS1

PubChem CID 605721
CAS 78031-18-2
Molecular Weight (g/mol) 206.06
MDL Number MFCD00173835
SMILES NC(=O)C1=C(Br)C=CS1
Synonym maybridge1_007895,3-bromo-2-carboxamidothiophene,2-thiophenecarboxamide,3-bromo,3-bromo-thiophene-2-carboxamide,3-bromo-2-thiophenecarboxamide #,buttpark 180\02-08,3-bromo thiophene-2-carboxamide
IUPAC Name 3-bromothiophene-2-carboxamide
InChI Key KWXUWNXTRUZHNQ-UHFFFAOYSA-N
Molecular Formula C5H4BrNOS
10

Methyl 3-aminobenzo[b]thiophene-2-carboxylate, 97%

CAS: 35212-85-2 Molecular Formula: C10H9NO2S Molecular Weight (g/mol): 207.247 MDL Number: MFCD00206744 InChI Key: VLHHEYMZLXKSQO-UHFFFAOYSA-N Synonym: methyl 3-aminobenzo b thiophene-2-carboxylate,benzo b thiophene-2-carboxylic acid, 3-amino-, methyl ester,cbmicro_030710,2-carbomethoxy-3-aminobenzothiophene,methyl 3-aminobenzothiophene-2-carboxylate,methyl-3-aminobenzothiophene-2-carboxylate,3-amino-2-methoxycarbonyl-1-benzothiophene,methyl 3-amino-benzo b thiophene-2-carboxylate,methyl 3-azanyl-1-benzothiophene-2-carboxylate,amino-benzo b thiophene-2-carboxylic acid methyl ester PubChem CID: 874720 IUPAC Name: methyl 3-amino-1-benzothiophene-2-carboxylate SMILES: COC(=O)C1=C(C2=CC=CC=C2S1)N

PubChem CID 874720
CAS 35212-85-2
Molecular Weight (g/mol) 207.247
MDL Number MFCD00206744
SMILES COC(=O)C1=C(C2=CC=CC=C2S1)N
Synonym methyl 3-aminobenzo b thiophene-2-carboxylate,benzo b thiophene-2-carboxylic acid, 3-amino-, methyl ester,cbmicro_030710,2-carbomethoxy-3-aminobenzothiophene,methyl 3-aminobenzothiophene-2-carboxylate,methyl-3-aminobenzothiophene-2-carboxylate,3-amino-2-methoxycarbonyl-1-benzothiophene,methyl 3-amino-benzo b thiophene-2-carboxylate,methyl 3-azanyl-1-benzothiophene-2-carboxylate,amino-benzo b thiophene-2-carboxylic acid methyl ester
IUPAC Name methyl 3-amino-1-benzothiophene-2-carboxylate
InChI Key VLHHEYMZLXKSQO-UHFFFAOYSA-N
Molecular Formula C10H9NO2S
11

Benzo[b]thiophene-2-carboxylic hydrazide, 97%

CAS: 175135-07-6 Molecular Formula: C9H8N2OS Molecular Weight (g/mol): 192.24 MDL Number: MFCD00052501 InChI Key: ZXKPFIRPUUAAPQ-UHFFFAOYSA-N Synonym: benzo b thiophene-2-carbohydrazide,benzo b thiophene-2-carboxylic hydrazide,thianaphthene-2-carboxylic hydrazide,benzo b thiophene-2-carboxylicacid, hydrazide,maybridge1_008989,acmc-1c3go,#,benzo b thiophene-2-carboxylic acid hydrazide PubChem CID: 519437 IUPAC Name: 1-benzothiophene-2-carbohydrazide SMILES: NNC(=O)C1=CC2=CC=CC=C2S1

PubChem CID 519437
CAS 175135-07-6
Molecular Weight (g/mol) 192.24
MDL Number MFCD00052501
SMILES NNC(=O)C1=CC2=CC=CC=C2S1
Synonym benzo b thiophene-2-carbohydrazide,benzo b thiophene-2-carboxylic hydrazide,thianaphthene-2-carboxylic hydrazide,benzo b thiophene-2-carboxylicacid, hydrazide,maybridge1_008989,acmc-1c3go,#,benzo b thiophene-2-carboxylic acid hydrazide
IUPAC Name 1-benzothiophene-2-carbohydrazide
InChI Key ZXKPFIRPUUAAPQ-UHFFFAOYSA-N
Molecular Formula C9H8N2OS
12

Methyl 3-amino-5-methylthiophene-2-carboxylate, 97%

CAS: 76575-71-8 Molecular Formula: C7H9NO2S Molecular Weight (g/mol): 171.21 MDL Number: MFCD00130095 InChI Key: FVKMOPIFLCMZMI-UHFFFAOYSA-N Synonym: 3-amino-5-methyl-thiophene-2-carboxylic acid methyl ester,methyl 3-amino-5-methyl thiophene-2-carboxylate,3-amino-5-methylthiophene-2-carboxylic acid methyl ester,2-thiophenecarboxylic acid, 3-amino-5-methyl-, methyl ester,methyl3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methyl-thiophene-2-carboxylic acid,methyl 3-amino-5-methylthiophen-2-carboxylate,methyl-3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methyl-2-thiophene-carboxylic acid, methyl ester PubChem CID: 818952 IUPAC Name: methyl 3-amino-5-methylthiophene-2-carboxylate SMILES: COC(=O)C1=C(N)C=C(C)S1

PubChem CID 818952
CAS 76575-71-8
Molecular Weight (g/mol) 171.21
MDL Number MFCD00130095
SMILES COC(=O)C1=C(N)C=C(C)S1
Synonym 3-amino-5-methyl-thiophene-2-carboxylic acid methyl ester,methyl 3-amino-5-methyl thiophene-2-carboxylate,3-amino-5-methylthiophene-2-carboxylic acid methyl ester,2-thiophenecarboxylic acid, 3-amino-5-methyl-, methyl ester,methyl3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methyl-thiophene-2-carboxylic acid,methyl 3-amino-5-methylthiophen-2-carboxylate,methyl-3-amino-5-methylthiophene-2-carboxylate,3-amino-5-methyl-2-thiophene-carboxylic acid, methyl ester
IUPAC Name methyl 3-amino-5-methylthiophene-2-carboxylate
InChI Key FVKMOPIFLCMZMI-UHFFFAOYSA-N
Molecular Formula C7H9NO2S
14

Thiophene-2-carboxylic hydrazide, 97%

CAS: 2361-27-5 Molecular Formula: C5H6N2OS Molecular Weight (g/mol): 142.176 MDL Number: MFCD00005435 InChI Key: SOGBOGBTIKMGFS-UHFFFAOYSA-N Synonym: 2-thiophenecarboxylic acid hydrazide,thiophene-2-carboxylic acid hydrazide,2-thenoylhydrazine,2-thiophenecarboxylic hydrazide,2-thiophenecarbohydrazide,thiophene-2-carboxylic hydrazide,2-thiophenecarboxylic acid, hydrazide,2-thiophenecarbohydrazonic acid,2-thienylcarboxylic acid hydrazide,2-thiophene carboxylic hydrazide PubChem CID: 73098 IUPAC Name: thiophene-2-carbohydrazide SMILES: C1=CSC(=C1)C(=O)NN

PubChem CID 73098
CAS 2361-27-5
Molecular Weight (g/mol) 142.176
MDL Number MFCD00005435
SMILES C1=CSC(=C1)C(=O)NN
Synonym 2-thiophenecarboxylic acid hydrazide,thiophene-2-carboxylic acid hydrazide,2-thenoylhydrazine,2-thiophenecarboxylic hydrazide,2-thiophenecarbohydrazide,thiophene-2-carboxylic hydrazide,2-thiophenecarboxylic acid, hydrazide,2-thiophenecarbohydrazonic acid,2-thienylcarboxylic acid hydrazide,2-thiophene carboxylic hydrazide
IUPAC Name thiophene-2-carbohydrazide
InChI Key SOGBOGBTIKMGFS-UHFFFAOYSA-N
Molecular Formula C5H6N2OS
15

3-Bromothiophene-2-carboxylic acid, 97%

CAS: 7311-64-0 Molecular Formula: C5H3BrO2S Molecular Weight (g/mol): 207.041 MDL Number: MFCD00052291 InChI Key: VQQLWBUTTMNMFT-UHFFFAOYSA-N Synonym: 3-bromo-2-thiophenecarboxylic acid,3-bromo-2-thenoic acid,2-thiophenecarboxylic acid, 3-bromo,3-bromo-thiophene-2-carboxylic acid,maybridge1_007344,3-bromothiophene-2-carboxylicacid,bromothiophenecarboxylic,pubchem10096,ksc494c9j,bromo-thiophene-2-carboxylic acid PubChem CID: 2739688 IUPAC Name: 3-bromothiophene-2-carboxylic acid SMILES: C1=CSC(=C1Br)C(=O)O

PubChem CID 2739688
CAS 7311-64-0
Molecular Weight (g/mol) 207.041
MDL Number MFCD00052291
SMILES C1=CSC(=C1Br)C(=O)O
Synonym 3-bromo-2-thiophenecarboxylic acid,3-bromo-2-thenoic acid,2-thiophenecarboxylic acid, 3-bromo,3-bromo-thiophene-2-carboxylic acid,maybridge1_007344,3-bromothiophene-2-carboxylicacid,bromothiophenecarboxylic,pubchem10096,ksc494c9j,bromo-thiophene-2-carboxylic acid
IUPAC Name 3-bromothiophene-2-carboxylic acid
InChI Key VQQLWBUTTMNMFT-UHFFFAOYSA-N
Molecular Formula C5H3BrO2S